January 31, 2002: Labor Department Official Says WTC Ruins Must Contain Asbestos
Assistant Secretary for Occupational Safety and Health John L. Henshaw writes in a letter to Mr. Lowell Peterson of the law firm, Meyer, Suozzi, English and Klein, P.C., that since “materials containing asbestos were used in the construction of the Twin Towers, the settled dust from their collapse must be presumed to contain asbestos.” [US Department of Labor, 1/31/2005]